Introduction to the Chu-Han War: The Chu-Han War lasted from August of the first year of the Han Dynasty (206 BC) to December of the fifth year of the Han Dynasty (202 BC). The two major groups, Xiang Yu, King of Western Chu, and Liu Bang, King of Han, fought for A large-scale war for political power ended with Xiang Yu's defeat and Liu Bang's establishment of the Western Han Dynasty.